I am a broiler breeder. I already have a dozen batches. Ten days later, the chicken began to shake its nose. A few days later, their airbags became inflamed and their bronchi became blocked, causing heavy casualties. Since last winter, respiratory diseases in broilers have been serious, and bronchial embolism is more common. In the past, the feeling of bronchial embolism was obviously seasonal, but now it is widespread and has no seasonal characteristics. The incidence of native chickens from Shandong, Henan, Northeast China and even as far away as Yunnan has been high. Bronchial embolism is the most serious respiratory disease in broilers, with long course, rapid development of large groups, serious secondary infection, high treatment cost and large food intake.

clinical symptoms

When chickens get sick, the symptoms are obvious, and everyone will look at them, but here I remind everyone that we must pay attention to a change in the early stage of the disease, mainly in two aspects:

(1) The onset of respiratory tract has a process, from "qi" to "snoring", which is constantly developing. "Snoring" means that there is phlegm in the bronchus, and there are two different forms of phlegm, and the treatment methods are different.

(1) One is that the sputum is thin and cold in the early stage. You can choose some traditional Chinese medicines to relieve exterior symptoms and dispel cold, such as ginger brown sugar, jingfang baidu powder and sanhan powder.

② The other is heat syndrome with thick phlegm and yellow phlegm, which further develops and damages lung qi. At this time, it is necessary to use traditional Chinese medicine for heat syndrome, and "treating blockage" is aimed at heat syndrome, and the treatment effect on bronchial embolism is outstanding.

⑵ When dissecting a chicken, you should not only look at the position of the fork, but also cut into the lungs along the bronchus. When you meet many friends who are dissecting, you should cut open the abdominal cavity and see the bifurcation of the bronchus. If there is no blockage, you will think that there is nothing wrong with the bronchus, including many technicians. As a result, you will find that the trachea in the lungs has been blocked. If it is not found in time, there will definitely be no small loss in the middle and late stages of this process.

What is the performance of sick chickens?

There are mild respiratory symptoms. The sick chickens have sniffing and sneezing, snoring and coughing after 3 days, and panting (abdominal breathing), mouth opening, neck stretching and barking after 5-7 days. It seems that healthy chickens often scream suddenly and then lie on their backs (belly up) and die. The feed intake of seriously ill chickens is reduced, the feathers are unkempt, the neck is narrowed and the eyes are closed, and some sick chicken chops are yellowish brown and loose.

Drug choice?

According to the physiological characteristics of chicken, chicken has no cough function. Once you suffer from respiratory diseases, especially in the acute stage, you can only achieve the purpose of thinning secretions by swinging your nose. The smaller the chicken, the less effective it is to throw it out. Aminophylline can dilate the trachea, enlarge the trachea, and the secretion will flow down more quickly. Once the bronchus is blocked, the chicken's life is over! ! Using the wrong medicine will also aggravate the mortality of chickens.

Therapeutic drugs;

The casualty rate of bronchial embolism is relatively high, and the onset is urgent. The effect of drugs on sick chickens and chickens is small, so the absorption concentration of drugs should be considered in the process of medication.

(1) The first choice for seriously injured patients is injection combined with oral drugs.

? If the casualty rate is 3-5%, we should consider the method of injection. After all, the injection absorption utilization rate is high, which can quickly control a large number of casualties. Combined with oral drugs, the effect is ideal.

② The absorption and utilization rate of oral drugs are different, so it is suggested to choose drugs with high absorption and utilization rate of oral drugs.

Treatment plan:

The first treatment is to regulate the liver and kidney of chickens, enhance the decomposition ability of the liver, and lay the foundation for the next treatment.

Morning: Zhiduke+ powerful? Afternoon: Du Xiao (anti-virus)+Wei Jun (local sensitive patch)

Efficacy description:

When used at the onset, it can be completely cured in 3 days;

After 3 days of onset, the death rate decreased obviously after taking 1 day, and the food intake increased obviously after taking the medicine for 2 days. Most cases can be cured in 3 days, and individual cases need 4-5 days.

"Du Zhi Ke" is suitable for the following symptoms:

1, tracheal ring bleeding

2. The lungs are purple-black.

3. The sputum in the trachea is yellow and sticky (note that the sputum is white and thin, which is not suitable for cold syndrome).

4. "Du Zhi Ke" can soothe the liver, benefit the gallbladder, expel blood stasis and pus, and is a valuable drug for treating bronchial embolism.

In the course of treatment, I met many customers. The chicken had bronchial embolism for 30 days and didn't want to be treated. My former client, Lao Meng of Handan, Hebei, has encountered such a situation. The local technician suggested stopping taking the medicine, and another medicine taken from the local area didn't work after two or three courses of treatment, so I lost confidence, but the chicken was not a chicken after 30 days. At this time, the injured chickens are all big chickens, and the attack of bronchial embolism is accompanied by a process of reducing material. At this time, I didn't take medicine. One is heavy casualties, and the other is that chickens eat less. 30 days is the second peak of chicken development. At this time, the food can't be served, and the death rate is high. There is only one ending, that is, being slaughtered in advance. The loss is not a little. Lao Meng wanted to think for himself, but still wanted to try the medicine. Lao Meng took two chicken sheds and did an experiment to see what the effect was. On the third day, Lao Meng called and said happily that the death rate had dropped from 80 the day before to 20. He was very satisfied with the treatment effect and once again verified the effect of "blocking grams".

From the experience of treatment, if the mortality rate of your chicken is within 1% in one day, the death will be controlled in the second day, and the obvious effect will be seen in the third day. If the casualty rate is 2%, it means that the incidence of chickens in the flock is high. At this time, the treatment is more difficult, so it is not a course of 3-4 days. From the clinical treatment experience, 5-6 days is a treatment cycle. At this time, the mortality rate and drug costs are increasing exponentially, so I suggest you use good drugs that have been tested by the market and have a good reputation in the early stage of the disease. The effect of the first treatment determines the ultimate fate of your flock, so be careful. Early detection, early treatment, early use of good medicine, early control of illness, reduction of death, and saving of medicine expenses must be accounted for clearly. There is no magic medicine, only good medicine for symptomatic and timely treatment.

cause of a disease

Preliminary clinical diagnosis may be related to infectious bronchitis virus and mycoplasma infection. Infectious bronchitis mainly infects young chickens, but it may break out in immunized chickens because of their resistance, harsh environment, different virus serotypes and virulence.

Mycoplasma is a common pathogen in the body, and it will get sick when it encounters stress such as low temperature, cold air and environmental mutation. The lesions are mainly catarrhal exudates of nasal cavity, accessory nasal cavity, trachea, bronchus and air sac, and the exudates of air sac often contain cheese-like exudates. Cellulose or cellulose purulent hepatitis, pericarditis and ballonitis can be seen in typical cases of severe chicken ballonitis. The mixed infection of the disease and infectious bronchitis often aggravates the condition.

Mycoplasma is the gateway of chicken respiratory tract. When the chicken's self-protection ability disappears, it will lead to a series of diseases, which will cause mixed feelings among chickens. Mycoplasma in chickens comes from two aspects.

(1) one is the vertical transmission of breeders, and the other is environmental stress, that is, the hatching of breeders. Now various breeders are gradually aware of this problem and are gradually improving it.

② The other is environmental pressure. Mycoplasma is a common pathogen in the body, and it will get sick when it encounters stress such as low temperature, cold air and environmental mutation. The ventilation of chicken coops is simple to say, but difficult to operate. A few people know the somatosensory temperature, but they don't know the real temperature of the henhouse. Blindly ventilated chicken coops always catch a cold, causing kidney swelling and lung inflammation. How many people know the negative pressure in their henhouse? Excessive negative pressure can easily lead to excessive wind speed at the air inlet, improper diversion and easy injury to chickens. Insufficient air supply leads to lack of oxygen. Lead to lung disease, ascites, serious airbag lesions, blockage, how many henhouses have done smoking experiments, know the direction of their henhouses, and the environmental conditions are poor, so your chickens have been in a pathological state. From the perspective of management, what you said is definitely not empty talk.